{"id":7026,"date":"2013-05-08T12:54:20","date_gmt":"2013-05-08T20:54:20","guid":{"rendered":"http:\/\/mlmlblog.wordpress.com\/?p=7026"},"modified":"2020-10-13T17:27:59","modified_gmt":"2020-10-14T00:27:59","slug":"invertebrate-spotlight-larvaceans","status":"publish","type":"post","link":"https:\/\/mlml.sjsu.edu\/student-life\/2013\/05\/08\/invertebrate-spotlight-larvaceans\/","title":{"rendered":"Invertebrate Spotlight: Larvaceans"},"content":{"rendered":"
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By Michelle Marraffini, Invertebrate Zoology Lab<\/h3>\n

Today in the Marine Invertebrate Zoology we learned about one of the most interesting marine animals. \u00a0Larvaceans (Class Larvacean) are unique animals in the phylum Chordata along with their close relatives sea-squirts (Class Ascidiacea) and slightly more distant relatives humans (Subphylum Vertebrata). \u00a0 These chordates retain their tadpool larva form and excrete a mucus house from specialized cells located on their head. \u00a0This house starts off as a small balloon like structure, the tadpole Larvacean whips its body to inflate the balloon with water, then when it is big enough the animal crawls inside, and whips its tail to continue to inflate the house. \u00a0Larvaceans will also eat with the help of their house which also contains screens set up to filter water, water is then further filtered by the animal so that it can eat bacteria sized particles.<\/p>\n

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A schematic of a larvacean in its house with the screens and showing water current flow. Photo Credit: Earthlife.net<\/figcaption><\/figure>\n

They live in this house until the screens become clogged and then they swim out of it start to make a new one. \u00a0They discard their old house with sinks to the ocean floor as marine snow. \u00a0Marine snow is considered a big source of nutrients to the deep sea, to learn more about how larvaceans contribute to marine snow check out MBARI's website<\/a>.<\/p>\n

\"http:\/\/oceanexplorer.noaa.gov\/explorations\/02arctic\/background\/fauna\/media\/oik_lab.html\"
Larvacean photo, screens shown in red tint, white folds are more filtering tools, and the animal itself is in the center of it's house. Photo Credit: Arctic Exploration 2002, Per Flood, NOAA\/OER<\/figcaption><\/figure>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

By Michelle Marraffini, Invertebrate Zoology Lab Today in the Marine Invertebrate Zoology we learned about one of the most interesting marine animals. \u00a0Larvaceans (Class Larvacean) are unique animals in the phylum Chordata along with their close relatives sea-squirts (Class Ascidiacea) and slightly more distant relatives humans (Subphylum Vertebrata). \u00a0 These chordates retain their tadpool larva […]<\/p>\n","protected":false},"author":291,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[158],"class_list":["post-7026","post","type-post","status-publish","format-standard","hentry","category-drop-inblog","tag-invertebrates"],"distributor_meta":false,"distributor_terms":false,"distributor_media":false,"distributor_original_site_name":"MLML Student Life","distributor_original_site_url":"https:\/\/mlml.sjsu.edu\/student-life","push-errors":false,"_links":{"self":[{"href":"https:\/\/mlml.sjsu.edu\/student-life\/wp-json\/wp\/v2\/posts\/7026","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mlml.sjsu.edu\/student-life\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mlml.sjsu.edu\/student-life\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mlml.sjsu.edu\/student-life\/wp-json\/wp\/v2\/users\/291"}],"replies":[{"embeddable":true,"href":"https:\/\/mlml.sjsu.edu\/student-life\/wp-json\/wp\/v2\/comments?post=7026"}],"version-history":[{"count":2,"href":"https:\/\/mlml.sjsu.edu\/student-life\/wp-json\/wp\/v2\/posts\/7026\/revisions"}],"predecessor-version":[{"id":20738,"href":"https:\/\/mlml.sjsu.edu\/student-life\/wp-json\/wp\/v2\/posts\/7026\/revisions\/20738"}],"wp:attachment":[{"href":"https:\/\/mlml.sjsu.edu\/student-life\/wp-json\/wp\/v2\/media?parent=7026"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mlml.sjsu.edu\/student-life\/wp-json\/wp\/v2\/categories?post=7026"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mlml.sjsu.edu\/student-life\/wp-json\/wp\/v2\/tags?post=7026"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}